Belt-shifter attachment for shaft hangers



July 7, 1925. 1,545,462"

D. M. WATSON ET AL I BELT SHIFTER ATTACHMENT FOR SHAFT HANGERS 2 Sheets-Sheet 1 WITNESSE INVENTORS:

" DavidM.Waso1 v.

" Russell H Bowen,

July 7, 1925. 1,545,462 D. M. WATSON ET AL BELT SHIFTER ATTACHMENT FOR SHAFT HANGERS Filed July 2, 1924 2 Sheets-Sheet 2 .FlZ'G: K

WITNESSE IN VENTQRS; mawammzso z v few w A ORNE YS.

' the shifter II is a side eleyation-"of the parts Patented July 7, 1925. Q;

UNITED STATES :PATEN o-FFrc E.

jnjitns s nlin :r YiBourEi i, or ir' iinijisammfii,

IENNSYLVANIA, jass enonsro T HE1M ERICAN 1?ULLEYCOMPANY, or PHILA- DELPHIA, PENNSYLVANIA, A CORPORATION or PENNSYLVANIA.

BEL'esHiFTER[AT AC MENT r-0R" sHAr r HAnGERs.

T 0 all whom it mag concern: r

a resident of Elkins Park,

States have invented certa-infinew. and use-- ful Improvements in BeltShifter Attachments "for Shaft Hangers, whereof'thewfol-g lowinglls a specificat omlreference being had to the accompanyingdrawings.

This invention "relates to a belt shifter means in the form of an attachment .or accessory useful in connection with standard types of shafthangers, and is directedito Ward improvingdevices of this kind, more especially 'with regard to rendering them easy of applicationtothe hangers; secure against f dislodgement when once in place; capable of ready adjustment to maintaining such adjustment against disturbance from shocks and V bration; and, in

long continuous usage, and economy in in anu facture. i

I From the detailed description hereinafter of atypical embodiment of our 111VI1't10n, Wlll be manifest how the desideratum above 7 outlined may be readily realized, the ap-' pended claims serving to define those fea. tures which We'belieye toflbe novel and wholly within the scope of the 'ii vention.

IVith reference to the drawings, Fig. I

is "an illustration showing'our iniproyed belt shifting attachment applied 'to a shaft hanger of standard constructionf Fig. II is a plan iew attachment 'in assemblage. Fig. shoivn in F ig. II.

Fi IVis an and View of the Sal-ire lookingfrom the right'of F ig. III. I

Fig. v is a section" taken as iiidie'atedby the arrows V-V in FigsI and III;

FigsJYI, VII, and VIIIa're sepa'rate per ecti'vely of the'fparts of the attachment shown in Fi sIII and'I'II;

spective views res and j n Fig. IX is adetail'section 'y ieW'ta'lien as indicated land III.

Application filed July 2,

, pulleys P (only meet the. varying requirements of practice and of legs .1 I :instanceshown, is. composed of two countergeneral, toward securing'the ady'antagesof f simplifiedconstructidn, such as reliability in.

for accommodation bf certain parts of y thear'rows IX IX in Figs." j

i H feraIlyTiI'IdiGated bythe numeral 17 the 1924. Serial ire-723,677.

The hanger herein shown is of a conven- -t1onalitype comprisingthe usual comple- 4 Whereby th e liangermay be: se-- cured to any convenient-support. The in r terIval ctween the lgsfllzibelowc thetie- ]bar 2, is'closed by:aeremovablegbridge piece 6; and a'journal box 7 for a shaft S ith one of said "pulleys being visible iii Fig. lyinounted lllllBIBOIli is ac- 1commodated Within the space ,5." :The journal box, 7 may be supported, with capacity for universal positional. adjustment in the usual manner; by, opposed set screivst8- 8 and 9-9extending rl'espectivelyfthrough the legs '1 and the parts 2-45. "The -11l2LlI1OP body portion of the hanger comprising the and the transverse bars 2 -3, in the YInentione'd with provision however, of an internal perimetr1c'a1 or marginal fin 11, This'finll is enlarged. or broadened somewhat at the corner regions of 'mergence of thetie bar2 with the legs 1 as shownat .12 of rivets 13 whereby the componentisections 10, IQ of the structure are permanently secured 'togetl'ier. The

hanger 'is i'einforced internally by Web plates planeat'each side'of the structure, andjeach such pair extends diametrically across a hollow leg l-as Wella's part Way into the tubular tie -bar 2, as 'best shown "in Fig; O uter marginal portionsof the reenl'orcing plates l li are offset or jpggled as shown at 1 5 in the latterillustration, so-as to respectively overlap abuttinglongitudinal internal flanges 16, 16 of the opposed seetions 10, IO thatcomposethe 'main portion ofthe hanger. i

Co 1'ning ITO to our improved belt shifter attachment; the same Will be; observedto-incl ude "a swivel bearing st ppo'rt member -genseveral illustrations, and a. lever. arm 18 capable of angular adjustment about afulcrum axis that is afforded by a pivot bolt 19 carried by the bearing member. The lever arm 18 is pierced as at 20 to permit,as may be required in meeting the exigencies of practice,-positional changes of a slide rod 21 whereto are afiixed fingers 22 for engaging the belt B which is to be shifted between the pulleys P. The bearing support 17 comprises two parts in the form of plates which are respectively designated engage opposite side'faces of the hanger diagonally crosswise of the angular juncture between one of the legs 1 and the tie-bar 2.

More especially from Figs. VI and VII it will be observed that the plates 23,2 1 are, substantially, right and left complements of one another, being oppositely concaved to accord with the surface configurations of the configurations respectively of the plates hanger,

and each characterized by a perimetrical marginal facing 26 with correspondingly disposed recessions 27-28, the latter designed to snugly fit the cross sectional legs 1 and 2. At coordinated points, the 23', '24 are cut away or notched in their faces as at 29-29 to afford clearances for the heads of the rivets 13 previously the cross bar mentioned, and their diagonally opposite ear projections 30-30 are apertured, as at 31-81, for passage ofclamp bolts 3238 (see Figs. I and 11) whereby the bearing support 27 is secured in position, the latter of the two bolts 1narked33 occupying the crotch between the leg 1 and the tie-bar 2 at the corresponding side of the hanger.

:The plate 23diifers from its fellow 24: only in that it has an offset or bracket-like extension 34 whichterminates in a hollow boss 35. The projecting annular face 36 of this boss 85 is radially'notched as shown in Fig. VI; and the base of said hollow boss is axially pierced as at arm 18 (see Fig. VIII), corresponds in diameter to the boss of the'plate 23, and

has an annular face 39 indented for locking interengagement with the radial notches of said plate, as well as an axially aligned ap erture 4O forjth'e pivotbolt 19.

By virtue of the diagonal positioningof 1 the'bearing support member 17 crosswise of at intervals lengthwise.

23, 2 1, and adapted to 37 to take the pivotbolt'19. The boss 38 at the fulcrum end of the leven proachof the belt B toward the pulleys P. Vhen thedesired adjustment is secured, the interfitting corrugations of the meeting boss faces 36, 39 will cooperate, upon tightening of the swivel bolt 19, to preclude the possibility of subsequent accidental movement of the arm 18.

In practice there are of course at least two belt hangers employed with the pulleys P-on the shaft S disposed between them, and a shifter attachment associated with each hanger so that the slide rod 21 carrying the belt engaging fingers 22 is afforded support at both ends.

Having thus described our invention, we claim:

1. A belt shifter attachment for a shaft hanger characterized'by spaced legs and a transverse tie-bar extending therebetween, said attachmentincluding a bearing support member adapted to engage both a leg and the tie-bar of the hanger for better security against displacement, and a belt shifter rod guide arm angularly. adjustable on said bearing support member;

2. A belt shifter attachment for a shaft hanger characterized by spaced legs and a transverse tie-bar extending therebetween, said attachment including a bearing support member adapted to be secured diagoially across the juncture of one of the hanger legs and the tie-bar for better security against displacement, and a belt shifter rod guide arm angularly adjustable on said bearing support member.

3. A belt shifter attachment for a shaft hangercharacterized by spaced legs and a transverse tie-bar extending therebetween,

wise of the angular juncture between one of the hanger legs and the cross bar aforesaid,

and a belt shifter rod guide arm angularly adjustable on said bearing support.

4. A- belt shifter attachment fora shaft hanger characterized by spaced legs and a transverse tie-bar extending therebetween; said attachment including a bearing support constituted by clamp plates adapted to engage opposite sides of one leg, of the hanger, diagonally located bolts to clamp the plates to the hanger leg, one ofsaid bolts occupying the crotch between said leg and the cross bar of thehanger, and a belt shifter rod guide arm 'angularly adjustable on said bearing support.

5. A belt shifter attachment for a shaft hanger characterized by spaced legs and transverse tie-bar extending therebetween,

said attachment including a bearing sup port comprising clamp plates'for engaging opposite side faces to both one leg and the tie-bar of the hanger, one of said plates having a projecting swivel bearing boss With radial face notches, means for clamping said plates in position, anangularly adjustable belt shifter rod guide arm With a fulcrum face corrugated for locking interengagement with the notched face of the bearing boss aforesaid, and a fulcrum bolt to securet-he arm in adjusted positions relative to the bearing support.

6. A belt shifter attachment for a shaft hanger characterized by spaced legs and a transverse tie-bar extending therebetween, said attachment including a bearing sup port member comprising clamp plates configured to snugly fit opposite side faces of the hanger diagonally crosswiseof the angular juncture between one of the legs and the cross bar aforesaid, one of said plates afi ording a projecting swivel bearing boss With radial face notches, an angularly adjustable belt shifter rod guide arm With a fulcrum face corrugated for locking inter engagement- With the notched face of the bearing boss aforesaid, and a fulcrum bolt to secure the arm in adjusted positions relative to the bearing support.

. In testimony whereof, We have hereunto signed our names at Philadelphia, Pennsylvania, this 26th day of June, 1924.

DAVID M. lVATSON. RUSSELL I-I. BOXVEN. Witnesses:

JOHN B. HEINE, G. HAROLD ROSENGREN. 

